Need urgent help in choosing a compatible CPU fan for a LGA 775 motherboard with Xeon CPU

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smoothiek

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Jul 9, 2012
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Hey there guys, so I found a cheap way to upgrade my old computer I got a modified X5470 CPU and put that on my Gigabyte ga p31-ds3l motherboard.

However I realised that because the new CPU has a tdp of 120w my current Arctic alpine gt 7 cooler is not adequate. So I need help in finding a cheap replacement because my computer keeps overheating and turning off.

I have another small heatsink with cooling fan right next to the cpu which restricts putting in a lot of the fans I've been looking at. I need a fan ideally similar size to the current fan I have. So please if someone could help me out would be great ideally a really cheap fan

Here's a link to a pic showing my current setup
http://

Thanks for reading this guys
 
Solution
itsVance




You need a heatsink made for your CPU. Since you are using a 771 CPU on a 775 motherboard, you will need to find a way to make it fit. Or you can buy a 775 heatsink and put a 771 base on it if you have the equipment to modify it.

Anyways what I posted made more sense to me when I posted it. I coulda explained my thoughts behind it if you had asked sooner =)
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itsVance

itsVance

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Jun 17, 2014
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smoothiek

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Jul 9, 2012
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10,510
Hey thanks for the reply vance however I just checked and 771 fans apparently are not compatible with the 775 motherboard. Also I normally use the tdp to check if the fan is suitable for the cpu however a lot of fans don't list that.
I see you mentioned cfm what would you say is a suitable cfm for my cpu?
 
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itsVance

itsVance

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Jun 17, 2014
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This is the one you have:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835186090
80mm fan
500 - 2000 RPM,
28.6 CFM

These are currently available on newegg:
http://www.newegg.com/Product/Product.aspx?Item=9SIA2W03XT7898
77mm Fan
At Duty Cycle 100%: 5500 RPM
At Duty Cycle 100%: 53.899 CFM

http://www.newegg.com/Product/Product.aspx?Item=9SIA2W03XT8221
60mm Fan
At Duty Cycle 100%: 7400 RPM
At Duty Cycle 100%: 37.58 CFM

I would go with:
http://www.newegg.com/Product/Product.aspx?Item=9SIA2W03XT7898
77mm Fan
At Duty Cycle 100%: 5500 RPM
At Duty Cycle 100%: 53.899 CFM

In addition, make sure you are not using some off brand thermal compound.
 
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smoothiek

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Jul 9, 2012
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Hey vance sorry if am being dumb but ain't the coolers you recommending 771 coolers and I have double checked and it apparently states you cannot fit 771 coolers on 775 :s
 
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itsVance

itsVance

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Jun 17, 2014
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You need a heatsink made for your CPU. Since you are using a 771 CPU on a 775 motherboard, you will need to find a way to make it fit. Or you can buy a 775 heatsink and put a 771 base on it if you have the equipment to modify it.

Anyways what I posted made more sense to me when I posted it. I coulda explained my thoughts behind it if you had asked sooner =)
 
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smoothiek

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Jul 9, 2012
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10,510
Hey vance I managed to find after a long search a fan and heatsink that was suitable. I got the arctic freezer pro 7 rev2. Thank you very much for your help and input vance :)
 
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itsVance

itsVance

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Jun 17, 2014
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No problem, what is your temp holding at idle?
 
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